From: Alex Young <alex@...>
Date: 2006-08-10T21:17:04+09:00
Subject: Re: extending String call with a #copy!(n)

Alex Young wrote:
> Une b�vue wrote:
>> i've allready extendy String class by a #copy(n) like that :
>>
>> class String
>>   def copy(n)
>>     out=""
>>     (1..n).each {|i| out+=self}
>>     return out
>>   end
>> end
>>
>> however i'd like to extend also String with a #copy!(n) (in place which
>> would work like that :
>>
>> "*".copy!(4)
>> # => "****"
>>
>> the prob is to affect self ???
> 
> Use << (or concat).
> 
or sub!.

class String
   def copy!(n)
     self.sub!(self, self*n)
   end
end

-- 
Alex